He first appeared on that network in 1998 on its late-night movie interstitial program, SpaceBar, as the alien barfly and ultimate Star Trek fan, Grot.

During the show's final year, Llyr also assumed writing duties, after fellow cast member and head writer Denis McGrath left the series.

Llyr also hosted the weekly audio podcast version of HypaSpace, and the network's annual Spacey Awards for science fiction and fantasy television and film.

Llyr was also a founding member of the Toronto, Ontario, based Shakespearean theatre company, The Tempest Theatre Group, (where he played a variety of roles including Hamlet, MacBeth, Marc Antony and Iago among many others) and has appeared in various episodes of the Decoder Ring Theatre [2][better source needed] including a number of different roles in The Red Panda Adventures and as the titular character in Deck Gibson, Far Reach Commander.

[3][4] In 2013 Llyr guested on the television show "Nikita" and in 2014 appeared as Mick O'Shea in four episodes of Murdoch Mysteries.